feat: support actix web framework

[jiacai2050]

Which issue does this PR close?

Closes #1

Rationale for this change

What changes are included in this PR?

Are there any user-facing changes?

How does this change test

Setup Prometheus locally with those setting,

global:
  scrape_interval: 5s

scrape_configs:
- job_name: prometheus-server
  static_configs:
  - targets: [127.0.0.1:9090]
    labels:
      env: dev

remote_write:
  - url: "http://localhost:9201/api/write"

remote_read:
  - url: "http://localhost:9201/api/read"
    read_recent: true